using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Data.SqlClient;using System.Data.OleDb;using System.Text;using System.Text.RegularExpressions;using System.IO;using System.Xml;using System.Drawing;public partial class dh12 : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)	{			}}